Related Clues:

• Person at home
• Ballpark figure?
• One who cries foul
• Balls-and-strikes caller
• Play caller
• Mary Poppins, for one
• Person with a chest pad
• Ref's diamond counterpart
• Mary Poppins was one
• You could be safe with him
• ...
• Dispute settler
• Guy who cries foul
• He may call a strike
• His chest is protected at home